SHDIATOOL Diamond Core Drill Bits 1-3/8 Inch (35mm) for Porcelain Ceramic Tile, Granite Countertop, Marble, Stone and Masonry Brick Vacuum Brazed Hole Saw with 5/8-11 Thread

Summary: Adding a few grab bars to dad's shower. I used a lot of products for this project, so including all related products in this review. Recommendation: 1) When mounting grab bars, it's always easier if you can find the stud to attach to. In this vertical install, I decided to use a stud and Wing-Its anchors; partially because I wasn't sure I could hit both, and didn't want to put two fasteners vertically (on either the right or left only), but that would also position the bar in the shower a little too far in (towards the shower control). 2) The WingIts requires a 3/4" hole through the mounting material. For tile, this can be especially challenging. I used the SHDIATOOL diamond 3/4" bit, with the DRILLAX adapter to get through the tile, and then used the 3/4" BOSCH bit to finish through the dry wall. Also used the BOSCH bits for the other small hole. Having the right tool for the job is the difference between project completion, and a messy, disaster. Related Products: Moen R8924P Home Care 24-Inch Concealed Screw Bath Safety Bathroom Grab Bar, Peened ~ $30 Pros: Moen name, includes stainless screws. Cons: None. Conclusion: 5-stars https://www.amazon.com/gp/product/B001EI0TJ4 Structural Grab Bar WingIts, PK2 ~ $14 Pros: Heavy duty, highly rated. Cons: Cost ($7/anchor). Conclusion: 4-stars (cost) https://www.amazon.com/gp/product/B004CCRJWO SHDIATOOL Diamond Core Drill Bits 3/4 Inch ~ $13 Pros: Right tool for the job, looked brand new after drilling two holes (with proper technique, including cool water). Cons: None. Conclusion: 5-stars https://www.amazon.com/gp/product/B07213KCN9 Drilax Core Drill Bit Arbor Adapter ~ $15 Pros: Allows SHDIATOOL bit to be used with drill (instead of angle grinder). Cons: Cost (a little expensive). Conclusion: 4-stars (cost) https://www.amazon.com/gp/product/B0737H7CMX BOSCH GT3000 Carbide Hammer Drill Bit Set ~ $25 Pros: Cuts great; carrying case. Cons: None. Conclusion: 5-stars https://www.amazon.com/gp/product/B001GNC8RS

Good quality, sharpness

I’m in this profession now for 10 years and I’m by no means someone who buys all the high end crap to use. These are sick though. Blows through like butter. Use a li water and a cone to smooth the edges after. Def recommend this

This hole saw chews through tile like it’s butter. It made easy work of a hood vent install when the wall was tile and drywall.

Cut 3 holes very well and is now slowing down..

Good tool,easy cut.

We are a pool company that installs covers OFTEN. I use these when I have to drill through tile and marble. It works great. I was able to do almost 50 holes with just one bit. It really is worth the money.

It would not thread completely into a standard hole saw mandrel (2nd pic) Made it about half way and it locked down like the thread pitch was off. Put it in a vice and locked it down w a wrench. Sacrificed a mandrel for it, no biggie. Start real slow and angled till u get a groove then straighten up. Worked good and was 1/3 the price of one at Lowe’s and HD. The granite core stayed stock in bit so I either have to figure out how to beat it out or it’s a one and done bit. If I have more than one hole to do keep that in mind. Would buy it again.

Es buena atravesó rápido el granito

This works very well, it’s quick and clean. Will be buying more soon

Había comprado un par de brocas para porcelanato más caras antes y se acabaron o rompieron después de algunos hoyos, pero esta broca puede hacer los hoyos más rápido y fácil y además vienen dos; lo unico malo es que no es para taladro si no para esmeriladora

Muy mal el material de la broca, solo aguanto dos cortes y se rompió, y Amazon no tiene garantías

Does what it says cut 2 holes through 1 1/4” thick firebrick. Cut was clean but did have to applied some pressure to get through. Cutting speed was about a minute to get through the material. Lots of diamond grit still on hole-saw after the 2 hole. I believe it will last a bit longer. Function like the description said and it was a fair price.